Advantages and disadvantages of UV rays

Advantages and disadvantages of UV rays

 UV advantages:

1) Disinfection and sterilization;

2) Promote bone development;

3) Good for blood color;

4) Occasionally, it can treat certain skin diseases;

5) It can promote mineral metabolism and vitamin D formation in the body.

UV Disadvantages:

1) Aging the skin and causing wrinkles;

2) Produce spots;

3) Cause dermatitis;

4) Causes skin cancer.